You could explode the brep into individual breps:
Dim crvlist As New list(Of curve)For Each bf As brepface In x.facescrvlist.addrange(curve.JoinCurves(bf.tobrep.GetWireframe(-1)))Nexta = crvlist
d files have surface divided into rectangular grid, I want that grid hexagonal SO THAT I CAN ATTACH MY HEXAGONAL GEOMETRY IN IT.Hexagon Pattern.3dm,,,,Hexagonal Pattern.ghx…